History ContinuityNod / LiveActionTV

* In ''ItsAlwaysSunnyInPhiladelphia'', in the episode "Paddy's Pub: Home of the Original Kitten Mittons," Dennis, Mac, and Frank make a marketing video for a marketing convention. At the end of the tape, it is shown that the video was taped over the old video of Dee catching fire while trying to rescue a box of kittens.

*** Later, when Ted tells his kids about when he said "I love you" to their mother, they were outside the movie theater playing "The Wedding Bride III", ''second'' sequel to the one about his life.

** Jack's arm tattoo (which he received prior to the events of season 3, when he was undercover in the Salazar cartel) is seen a handful of times throughout the rest of the series, most noticeably in a season-four episode where Jack changes his shirt after an interrogation.

** Another great one was the throwaway reference to Stella's husband, Tony, moving to LA to become a screenwriter. A season later, a movie he wrote based on Ted's life becomes the center of an episode.

** A particular favorite of mine: Barney makes a throwaway reference in one episode to having had sex with Madeleine Albright. In a later episode when we see several of his conquests flash before his eyes, Albright is among them.

** And that's not even mentioning the string of characters from seasons past that made brief appearances in the fifth season even if they didn't have major bearing on the season's plot themselves, including but not limited to Nick Sobotka, Clarence Royce, Randy Wagstaff, and Wee-Bey Brice.

** In "A Time To Jump and Jam", Barry and Naldo agree that "Heart Rocket" is AGoodNameForARockBand. An alternate future in "The Butterscotch Effect" has them in a band with that name.

* ''Series/BestFriendsWhenever''':

* ''Series/{{Alias}}'': At the beginning of series 3, Jack is released from a year in solitary confinement and goes to see Arvin Sloane to confront him about Sydney's missing two years. Sloane offers Jack all the information he has on his own investigation into what happened to Sydney which Jack takes as a denial of any involvement in Sydney's disappearance. Jack's response is "you've just made the worst mistake of your life, because I'm going to bury you", a phrase with two possible meanings. In the series finale, Jack finally gets the chance to carry out this promise. [[spoiler: He blows up the entrance to Rambaldi's tomb with Sloane trapped inside, just as Sloane gains immortality, burying Sloane underneath the rubble for [[FateWorseThanDeath eternity]].]]

* Tim Allen constantly makes these in 'Series/ {{Last Man Standing}}'', including, but not limited to, a Christmas episode where he scoffs at the idea of him dressing up as Santa Clause, various episodes where he makes Buzz Lightyear quotes, (To infinity and beyond,) and an entire episode parodying "Home Improvement," guest starring Patricia Richardson, and neighbor Chuck Larabee wears a fishing hat and peeks half his face over the fence, making reference to Tim Taylor's neighbor in Home Improvement, Wilson.

* ''Series/{{Alias}}'': At the beginning of series 3, Jack is released from a year in solitary confinement and goes to see Arvin Sloane to confront him about Sydney's missing two years. Sloane offers Jack all the information he has on his own investigation into what happened to Sydney which Jack takes as a denial of any involvement in Sydney's disappearance. Jack's response is "you've just made the worst mistake of your life, because I'm going to bury you", a phrase with two possible meanings. In the series finale, Jack finally gets the chance to carry out this promise. [[spoiler: He blows up the submerged building Sloane is in just as Sloane gains immortality, burying Sloane underneath rubble that's at the bottom of the sea for [[FateWorseThanDeath eternity]].]]

* ''Series/{{Alias}}'': At the beginning of series 3, Jack is released from a year in solitary confinement and goes to see Arvin Sloane to confront him about Sydney's missing two years. Sloane offers Jack all the information he has on his own investigation into what happened to Sydney which Jack takes as a denial of any involvement in Sydney's disappearance. Jack's response is "you've just made the worst mistake of your life, because I'm going to bury you", a phrase with two possible meanings. In the season finale, Jack finally gets the chance to carry out this promise. [[spoiler: He blows up the submerged building Sloane is in just as Sloane gains immortality, burying Sloane underneath rubble that's at the bottom of the sea for [[FateWorseThanDeath eternity]].]]

* ''Series/ArrestedDevelopment'' does this very frequently, one of the reasons it is much admired by fans.

* ''Series/{{Lost}}'' has featured several of these, such as allusions to the polar bear in the pilot episode. The episode "Exposé" was essentially one big long ContinuityNod.

* Used pretty frequently on ''Series/{{ER}}''. But then, with 15 seasons, the show has a lot of backstory to refer to.

* In ''Series/UnnaturalHistory'', there was a lot of these in "Past, Presidents, and Future".

* Naturally, ''Series/AgentsOfSHIELD'' has this to previous Franchise/MarvelCinematicUniverse movies.

** Penny's Check Engine light
*** That one is more of a RunningGag

** In the Season Seven episode "Him", Buffy tries to kill Principal Wood with the rocket launcher she used to kill the Judge back in Season Two.
*** In the same episode, Willow mentions the danger of love spells. Xander has a brief flashback to a season two episode in which all the girls in Sunnydale (save Cordelia) fell in love with him due to a love spell.

* Naturally, ''Series/AgentsOfShield'' has this to previous Franchise/MarvelCinematicUniverse movies.

* In ''UnnaturalHistory'', there was a lot of these in "Past, Presidents, and Future".

* ''Series/{{Alias}}'': At the beginning of series 2, Jack is released from a year in solitary confinement and goes to see Arvin Sloane to confront him about Sydney's missing two years. Sloane offers Jack all the information he has on his own investigation into what happened to Sydney which Jack takes as a denial of any involvement in Sydney's disappearance. Jack's response is "you've just made the worst mistake of your life, because I'm going to bury you", a phrase with two possible meanings. In the season finale, Jack finally gets the chance to carry out this promise. [[spoiler: He blows up the submerged building Sloane is in just as Sloane gains immortality, burying Sloane underneath rubble that's at the bottom of the sea for [[FateWorseThanDeath eternity]].]]

* Done oh so many times on ''Series/{{Warehouse 13}}'', usually involving past experiences with artifacts. Some of these reference past episodes, others are {{Noodle Incident}}s, such as the one with AbrahamLincoln's hat, causing Pete to have an irresistible urge to free Mrs. Frederic. She was not amused.

--> '''Angel:''' ''(to Faith'' ""It wasn't that long ago I had to pull you off your father before you choked him to death. So keep your parenting advice to yourself." ''Ouch''.